Distributed antenna system for radiating modulated radio-frequency carrier signals to different regions
First Claim
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1. A wireless telecommunications system that employs a distributed-antenna system to provide wireless telecommunications service to a wireless terminal, the wireless telecommunications system comprising:
- a first antenna located at a first location that;
(i) radiates a first modulated radio-frequency carrier signal, and(ii) radiates a second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the first antenna, has a signal strength above a signal-strength threshold in a first region;
a second antenna located at a second location that;
(i) does not radiate the first modulated radio-frequency carrier signal, and(ii) radiates the second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the second antenna, has a signal strength above the signal-strength threshold in a second region;
a third antenna located at a third location that;
(i) radiates the first modulated radio-frequency carrier signal, wherein the first modulated radio-frequency carrier signal, as radiated by the third antenna, has a signal strength above the signal-strength threshold in a third region, and(ii) does not radiate the second modulated radio-frequency carrier signal,a radio bank for generating the first modulated radio-frequency carrier signal and the second modulated radio-frequency carrier signal, wherein;
(i) the second modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal;
a first wireline assembly for transporting the first modulated radio-frequency carrier signal from the radio bank to the first antenna and to the third antenna; and
a second wireline assembly for transporting the second modulated radio-frequency carrier signal from the radio bank to the first antenna and to the second antenna.
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Abstract
A wireless telecommunications system that employs a distributed-antenna system is described in which different combinations of radio signals are assigned to antennas so as to facilitate locating a wireless terminal based on the identity and the relative signal strength of the radio signals it receives above a signal-strength threshold.
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Citations
15 Claims
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1. A wireless telecommunications system that employs a distributed-antenna system to provide wireless telecommunications service to a wireless terminal, the wireless telecommunications system comprising:
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a first antenna located at a first location that; (i) radiates a first modulated radio-frequency carrier signal, and (ii) radiates a second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the first antenna, has a signal strength above a signal-strength threshold in a first region; a second antenna located at a second location that; (i) does not radiate the first modulated radio-frequency carrier signal, and (ii) radiates the second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the second antenna, has a signal strength above the signal-strength threshold in a second region; a third antenna located at a third location that; (i) radiates the first modulated radio-frequency carrier signal, wherein the first modulated radio-frequency carrier signal, as radiated by the third antenna, has a signal strength above the signal-strength threshold in a third region, and (ii) does not radiate the second modulated radio-frequency carrier signal, a radio bank for generating the first modulated radio-frequency carrier signal and the second modulated radio-frequency carrier signal, wherein; (i) the second modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal; a first wireline assembly for transporting the first modulated radio-frequency carrier signal from the radio bank to the first antenna and to the third antenna; and a second wireline assembly for transporting the second modulated radio-frequency carrier signal from the radio bank to the first antenna and to the second antenna. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless telecommunications system that employs a distributed-antenna system to provide wireless telecommunications service to a wireless terminal, the wireless telecommunications system comprising:
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a first antenna located at a first location that; (i) radiates a first modulated radio-frequency carrier signal, wherein the first modulated radio-frequency carrier signal, as radiated by the first antenna, has a signal strength above a signal-strength threshold in a first region, and (ii) radiates a second modulated radio-frequency carrier signal, and (iii) does not radiate a third modulated radio-frequency carrier signal; a second antenna located at a second location that; (i) radiates the first modulated radio-frequency carrier signal, wherein the first modulated radio-frequency carrier signal, as radiated by the second antenna, has a signal strength above the signal-strength threshold in a second region, and (ii) does not radiate the second modulated radio-frequency carrier signal, and (iii) radiates the third modulated radio-frequency carrier signal; a third antenna located at a third location that; (i) radiates the first modulated radio-frequency carrier signal, wherein the first modulated radio-frequency carrier signal, as radiated by the third antenna, has a signal strength above the signal-strength threshold in a third region, and (ii) does not radiate the second modulated radio-frequency carrier signal, and (iii) does not radiate a third modulated radio-frequency carrier signal; a radio bank for generating the first modulated radio-frequency carrier signal, the second modulated radio-frequency carrier signal, and the third modulated radio-frequency carrier signal, wherein; (i) the second modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, (ii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, and (iii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the second modulated radio-frequency carrier signal; and a first wireline assembly for transporting the first modulated radio-frequency carrier signal from the radio bank to the first antenna, to the second antenna, and to the third antenna; a second wireline assembly for transporting the second modulated radio-frequency carrier signal from the radio bank to the first antenna; and a third wireline assembly for transporting the third modulated radio-frequency carrier signal from the radio bank to the second antenna. - View Dependent Claims (7, 8, 9)
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10. A wireless telecommunications system that employs a distributed-antenna system to provide wireless telecommunications service to a wireless terminal, the wireless telecommunications system comprising:
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a first antenna located at a first location that; (i) radiates a first modulated radio-frequency carrier signal, and (ii) radiates a second modulated radio-frequency carrier signal, and (iii) does not radiate a third modulated radio-frequency carrier signal; a second antenna located at a second location that; (i) does not radiate the first modulated radio-frequency carrier signal, and (ii) radiates the second modulated radio-frequency carrier signal, and (iii) radiates the third modulated radio-frequency carrier signal; a third antenna located at a third location that; (i) does not radiate the first modulated radio-frequency carrier signal, and (ii) does not radiate the second modulated radio-frequency carrier signal, and (iii) radiates the third modulated radio-frequency carrier signal; a radio bank for generating the first modulated radio-frequency carrier signal, the second modulated radio-frequency carrier signal, and the third modulated radio-frequency carrier signal, wherein; (i) the second modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, and (ii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, and (iii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the second modulated radio-frequency carrier signal; and a first wireline assembly for transporting the first modulated radio-frequency carrier signal from the radio bank to the first antenna; a second wireline assembly for transporting the second modulated radio-frequency carrier signal from the radio bank to the first antenna and to the second antenna; and a third wireline assembly for transporting the third modulated radio-frequency carrier signal from the radio bank to the second antenna and to the third antenna. - View Dependent Claims (11, 12)
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13. A wireless telecommunications system that employs a distributed-antenna system to provide wireless telecommunications service to a wireless terminal, the wireless telecommunications system comprising:
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a first antenna located at a first location that; (i) radiates a first modulated radio-frequency carrier signal, and (ii) radiates a second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the first antenna, has a signal strength above a signal-strength threshold in a first region, and (iii) does not radiate a third modulated radio-frequency carrier signal; a second antenna located at a second location that; (i) does not radiate the first modulated radio-frequency carrier signal, and (ii) radiates the second modulated radio-frequency carrier signal, wherein the second modulated radio-frequency carrier signal, as radiated by the second antenna, has a signal strength above the signal-strength threshold in a second region, and (iii) radiates the third modulated radio-frequency carrier signal; a radio bank for generating the first modulated radio-frequency carrier signal, the second modulated radio-frequency carrier signal, and the third modulated radio-frequency carrier signal, wherein; (i) the second modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, and (ii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the first modulated radio-frequency carrier signal, and (iii) the third modulated radio-frequency carrier signal is distinguishable by the wireless terminal from the second modulated radio-frequency carrier signal; a first wireline assembly for transporting the first modulated radio-frequency carrier signal from the radio bank to the first antenna; a second wireline assembly for transporting the second modulated radio-frequency carrier signal from the radio bank to the first antenna and to the second antenna; and a third wireline assembly for transporting the third modulated radio-frequency carrier signal from the radio bank to the second antenna. - View Dependent Claims (14, 15)
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Specification